Sara Sheridan has written an excellent article in the Guardian about the need for writers to embrace social media http://tinyurl.com/3qrhgst .
Sheridan's social media progression -- 1) building a basic site, 2) contributing to others blogs, 3) creating a facebook page, and then 4) embracing twitter -- seems like a workable path to social media effectiveness for a writer.
This simple four step path avoids the mind-numbing confusion of social media tools and marketing techniques, and focuses the writer on what writers do best--having conversations.
In the article, Sheridan talks about the importance of net neutrality. My geek friends have been warning me about the network neutrality issue for the last couple years, but I never really understood the issue. Sheridan explains the implications for writers, and why everyone in the writing community should be deeply concerned.